public class PC {
	CPU cpu;//定义cpu为CPU类型
	HardDisk HD;
	 public void setCPU(CPU c){
		cpu=c;
	}
	public void setHardDisk(HardDisk h){
		HD=h;
		}
  public void set(CPU c,HardDisk h){
    cpu=c;
  	HD=h;
  	}
	public void show() {
			System.out.println("cpu的速度："+cpu.getSpeed()+"硬盘的容量："+HD.getAmount());
		}
}
